Abstract: A belt buckle is provided with a solar cigarette lighter for lighting tobacco products such as cigarettes and cigars. The belt buckle comprises a convex-shaped buckle body with a reflective surface that is configured to reflect the rays of the sun to a focal point above the reflective surface. A positioning mechanism facilitates placement of one end of the tobacco product at the focal point to receive the reflected rays so as to ignite the tobacco product. In a preferred embodiment, the positioning mechanism comprises a base attached to the buckle body and a support member pivotally attached to the base. The positioning mechanism collapses for use as a belt buckle. The base can be provided with detents or other mechanisms to hold the support member upright during use to ignite the tobacco product. The reflective surface can be on the back or front side of the belt buckle.

Abstract: A personal fan generally comprises a source of electrical power such as, for example a power supply unit and a fan motor with one or more blades dependently supported by an adjustable arm. A tilt switch is provided for novel functionality for the personal fan, including the interruption of operation of the fan's blades while a user is drinking from an affixed cup or for activation of a provided light to indicate the need for replenishment of a beverage contained within the cup. A mounting assembly is provided for affixing the personal fan to a cup or mug, the brim of a hat or to any other desired structure in the proximity of a person who wishes to make use of the personal fan.

Abstract: A circuit and method for enabling/disabling a differential signal output from a memory device, such as a bipolar static random access memory, is disclosed. A split bias, current steering circuit includes a first differential amplifier for steering a current I.sub.D along a first current path when a first selected differential input signal, corresponding to a first logic state, is coupled to a first input terminal of said first differential amplifier; and includes a second differentialamplifier for steering current I.sub.D along a second current path when a second selected differential input signal, corresponding to a second logic state, is coupled to a second input terminal of said second differential amplifier. An output stage produces a selected logic output signal according to which of said first and second current paths is selected to steer current I.sub.D. A split bias enable/inhibit stage provides controlled operation of the first and second differential amplifiers.